scsi: qla2xxx: add more FW debug information

Per FW request, MB 1-7 should be logged for 8002 error.

Link: https://lore.kernel.org/r/20200226224022.24518-11-hmadhani@marvell.comSigned-off-by: Himanshu Madhani <hmadhani@marvell.com>
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

drivers/scsi/qla2xxx/qla_isr.c

@@ -854,12 +854,24 @@ qla2x00_async_event(scsi_qla_host_t *vha, struct rsp_que *rsp, uint16_t *mb)
 		break;
 
 	case MBA_SYSTEM_ERR:		/* System Error */
-		mbx = (IS_QLA81XX(ha) || IS_QLA83XX(ha) || IS_QLA27XX(ha) ||
-		    IS_QLA28XX(ha)) ?
-			RD_REG_WORD(&reg24->mailbox7) : 0;
-		ql_log(ql_log_warn, vha, 0x5003,
-		    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh "
-		    "mbx7=%xh.\n", mb[1], mb[2], mb[3], mbx);
+		mbx = 0;
+		if (IS_QLA81XX(ha) || IS_QLA83XX(ha) ||
+		    IS_QLA27XX(ha) || IS_QLA28XX(ha)) {
+			u16 m[4];
+
+			m[0] = RD_REG_WORD(&reg24->mailbox4);
+			m[1] = RD_REG_WORD(&reg24->mailbox5);
+			m[2] = RD_REG_WORD(&reg24->mailbox6);
+			mbx = m[3] = RD_REG_WORD(&reg24->mailbox7);
+
+			ql_log(ql_log_warn, vha, 0x5003,
+			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh mbx4=%xh mbx5=%xh mbx6=%xh mbx7=%xh.\n",
+			    mb[1], mb[2], mb[3], m[0], m[1], m[2], m[3]);
+		} else
+			ql_log(ql_log_warn, vha, 0x5003,
+			    "ISP System Error - mbx1=%xh mbx2=%xh mbx3=%xh.\n ",
+			    mb[1], mb[2], mb[3]);
+
 		ha->fw_dump_mpi =
 		    (IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&
 		    RD_REG_WORD(&reg24->mailbox7) & BIT_8;